Method of and mechanism for dampening planographic presses.



N0. 637,578. Patented Nov. 2|, i899. E. HETT.

METHOD 0F AND MECHNISM FOR DAMPE'NING PLANOGRAPHIC PRESSES.

(Application filed Jan. 5, 1899.;

(No Model. Y 6 Sheets-Shee I.

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@J m @auw www @web @D w@ Q b ATTORNEYJ TN: yonmsynzns co.. Pnofcxuwo.. wAsmNsYoN. n. c.

Patented Nov. 2|, i899. E. HETT.

METHOD 0F AND MECHANISM FUR DAMPENING'PLANOGRAPHIC PRESSES.

(Application filed Jan. 5, 1899.)

6 Sheets-Sheet 2.

(No Model.)

No. 637,578. Patented Nov. 2|, |899. E. HETT. METHOD 0F AND MECHANISM FDR DAMPENING PLANUGHAPHIC PRESSES.

(Application led Jan. 5, 1899.) (No ModeL). 6 Sheets-Sheet 3,

INVENTOR WITNESSES:

ATTORNEYJ` "m: Ncwms Pcrrfn covv mc'ro-Lrmo.. wAsulNGTon. D. c.

(N0 Model.)

Patented Nov. 2|, |899.

E. HETT.

METHOD 0F AND MECHANISNI FOR DAMPENING PLA'N-DGBAPHIC- PRESSES.

(Application led Jan.,5, 1899.)

WITNEssEs.: y L N ll-lllllh mll.

6 Sheets-Sheet 4.

No. 637,578. Patented Nov. 2|, |899. E. HETT.

METHOD 0F AND MECHANISM FOR DAMPENING PLANOGRAPHIC PRESSES.

(Application led Jan. 5, 1899.\ (No Model.) 6 Sheets--Sheet 5.

YW www ATTORNEYJ No. 937,579. Patented mw. 2|, |899.v

. E. HETT.

METHOD 0F AND MECHANISM FDR DAMPENING PLANDGRAPHIUPRESSES. (Application med .im es, 1999.3

ATTORNEYJ :Tins CO. Paoauwn., wAsHmaToN, D c

UNITED. STATES,

PATENT f Ormes.

EDWARD HETT, OF NEW YORK, N. Y.

METHOD OF AND MECHANISM` FORDAMPENING PLANOGRAPHIC PRESSES:

SPECIFICATION forming part Letters Patent No. 637,578, dated November 21, 1899.

Application iiled January 5, 1899. Serial No. 7015195. (No model.)

T0 a/ZZ wiz/0m it may concern:

Be it known that I, EDWARD HETT, a citizen of the United States, and a resident of New York, (New Dorp,) in the county of Richmond, State of New York, have invented certain new and useful Improvements in Methods of Dampening Planographic Presses and Dampening Mechanism for Said Presses, of which the fol- -lowing is a specification.

My invention relates to methods for damping prlnting-surfaces in a planographicfpress and to damping mechanism in such a press.,

It has for its object to provide a new and improved method for damping printing-surfaces in a planographic press and new and improved damping mechanism for such a press.

It consists of the novel devices herein shown and described.

I have illustrated in the drawings and will now proceed to describe'the preferred form of my improved method and apparatus, similar parts in the different figures beingrepresented by corresponding reference-numbers.

Figure l is an elevation of my fluid-pressure tank and a vertical section of a cooler and heater used therewith. Fig. 2 is a plan of the same. Figs. 3 and 4 are vertical longitudinal and transverse sections, respectively, through a printing-cylinder and its damping mechanism, Fig. 3 being taken on the line 3 3 of Fig. 4 as viewed by the arrow and Fig. 4 on the line 4 4 of Fig. 3 as viewed by the arrow. Fig. 5 is a side elevation, partly in section, of one end of the shaft of the printing-cylinder with its bearing-box and connections; and Fig. 6 is an end elevation of the same. Figs. 7 and 8 are longitudinal and transverse sections, respectively, through part of a printing-cylinder and its damping devices, Fig. 7 being taken on the line '7 7 of Fig. 8 as viewed by the arrow and Fig. 8 on the line 8 8 of Fig. 7 as viewed by the arrow. Figs. 9 and 10 are side and end elevations of parts of a multicolor-press to which my improved devices are applied, and Fig. 11 is a view of the other side. of the multicolor-press.

In my improved method I force a cooling fluid, preferably air,from some suitable source of supply-as, for example, an air-pressure reservoir-to the printing mechanism, applying the cooling fluid to that side of the support carrying the printing-surface which is opposite to the printing-surface itself, thus cooling the printing-support and printingsurface, and I also force a heated moistening fluid-such, for instance, as water or vaporladen air-z-to the printing-surface and apply it `to such surface. In the drawings my method is illustrated as applied to a multicolor-press in which the printing-surfaces are printing-cylinders. In this form I force air from an air-pressure reservoir through a cooler, where the air is cooled to the proper degree, thence through a main supply-pipe, and from that supply-pipe through branch supply-pipes to the interior of the different printing-cylinders, thus cooling those cylinders, including the outer cylindrical printing-surfaces, and'keeping them cool. I also force hot water or a heated damping solution by means of air-pressure through a main supply-pipe,and thence through branch pipes to the interior of the \vaterroller,from whence it proceeds outward to damping-rollers, and from thence to the printing-surface, or I `force air under pressure through hot water or a heated damping solution, thus heating the air and saturating it with vapor, thence through a main supply-pipe and branch pipes to a perforated cylinder lying along and parallel to the printing-surface and blowing upon the cool printing-surface of each printing-cylinder heated vapor-laden air.

l represents the framework of a multicolorpress, in which 2 2 are printing-cylinders. Only a part of the multicolor-press with which my improved devices are connected is shown in the drawings, as the press is substantially the same as that shownin my prior application, Serial No. 695,281, filed on the 2d dayl of November, 1898, the details of such a press forming no part of my present invention. In Figs. 9, l0, and Il I have accordingly shown only such parts of the multicolor-press as are suliicient to enable the connection of my improved devices with such a press to be understood. The details of the multicolorpress Wi1lnot,therefore, be further described.

Each of the printing-cylinders is preferably made hollow, as shown in Figs. 3and '7. Each cylinder has a printing-surface on its eXterior face, which may be either integral with the cylinder or may be removable from the same. In the drawings I have shown the ICO printing-surface ascomposed of hollow.r prin-ti ing-tubes3, adapted-to'be slipped over and,

g plying a cooling 'uid to the interior of eachy y printing-cylinder by means of the follow-ingdescribed mechanism:

is an air-pressure reservoir which ca-l-rbeV supplied with air 'under' pressure in any suitable manner. y

air which-is supplied to itl from *the air-,pressure reservoir by the pipe 7. ."Theflow of air into the cooler is regulated by a valve 8.' The air passes from the pipe 7.1'nto the bottomof; v cooler 6, passing around andbetweenthecoils.

of the cold-Water pipe 9.

suitable cooling medium is supplied to pipe 9 Cold water-,or-other from any suitable source through valveylOat the top of thecooler and is discharged thro ugh;

valve 11 and pipe l2 from the bottom of the ing-through one of the bearing-boxes of each printing-cylinder through elastic fluid-tight connections. l The end `of each branch pipe 15l is screw- `threaded at 1,6. (sce-Fig. 5) to enter a cylin-L, drical screw-threaded opening in the frame` work'` of the press'supporting one of the-bearingsof a printing-cylinder'.n Anopening17 -is cut through the said framework and is screw-threaded at its upper'end at 18 tore- 19.,` The upper-.end of lpipe 19 normally bears again-st the under side part ofl theibearing of' the printing-cylinder and registers-withal) madefuidl-tight bymeansv of a stuffing-box device consisting of a circular plate 21, stu-rrounding pipe 19.1'and having arubberirin'g 221onits'faceand hollowed'out at itslower end to receivea washer 23 and screw-threaded' interiorlytoreceive a screw-'threadedcap 24.`

The plate k21 fits into va recess 25, cut inthe face 'of the bearing and slightly larger than.l the pla-te to permit of slight lateral adjustment.

A spring-2.6 tends topress the stuifing-box tightly against the bearing, anidthus makes a; Huidtight joint. By this arrangement. -uid -tight` connections 4are made, between `the supply-pipe and the opening in they s bearing-box,fwhichalso permit theprinting-Lk 6o moved yfrom; the press and to be replaced" therein; 27 isa stopjtoprevent the parfs21,

These devices` are as follows:

n` aroundA one end?A of the shaft-of the pri-'nt-1 ing-cylinder. fThis chamber runs entirely around the shaft of theprinting-cylinder. A pipe 29 connects chamber 28 with the hollow :interior 30 of the printing-cylinder, as shown in Fig. The pipe 29 and the cylindrical chamber28 revolve with the printing-cylinder. For this reason I make the chamber 28 cylindrical, so that opening 20 in the bearing willzalways open into some part ofthe cham- Aber 28;'` By means of thecylindrical chamber "28 and pipe29 andelastic fluid-:tight connecy 6 is a cooler for-thek purpose of 'cool-ing the tions between each vbranch supply-pipe and `A the opening inthe bearing a cooling iiuid can be continuously 'supplied to the interior `of "each, printing-cylinder Without interfering `With its rotation, and each printing-'cylinder and itsV bearingcan be removed andreplaced vat willfr 1 S31 is a valve `for controlling the supply of ','cool air-from eachV `branch'supply-pipe 15 to lits cylinder.v f

` e2 is. a Smau Orifice leading-.from matthew interi-or `3O o`i` the.printing-cylinder tol the outer air to permit adischargey into theat- `mosphere, so as to keep upfa continuous AHow -of cold. air into therin'teriorof they printingv cylinder. .1

" Fig. 11 shows'the arrangement of themain Isu'pply a heated moisteningi fluid tothe printing-surface; I SuchV a fluid may? be sup- .kplied Veither in the shape of a liquid-as, for

example, heated water'or heated damping solution-.f'or inthe form of a ga`s` as, for exam- .c ple, vapor-ladenair--or both may be used, if ceivethescrew-threaded end of'a short pipe:V

desired. In Figs. 1, 7, 8,"ands9 vI` showdeviceszforfsupplying both the liquid andthe z gas; and inv Figs/.3 andfl show devicesfor supplyinga liquid alone. f Eitherone or` the. opening 20, formed'in the bearing. The con- 4 nections; between pipe 1`9-and opening 20'are" other` orvboth` may be. used; as' desired. The

vvdevices `shown inl the drawings forl supplya ing such aliquid or gasare'asfollowsz- I will r first` describe Vthe apparatus for supplying a `heated liquid. gpressure reservoir 5 through'pipe 33 to'the topr ofl heater 34:,Which V.is ,madeV air-tight in 1 any'suitable manner. The valve33controls the passage of air through pipe 33. I place i inthe heater water or any suitable damping i solution 35 :which maybe heated in any-suitf able manner.` As shown, I heat, it by meansV ohl an electric heater k36, which can be con- I structed in any suitable mannen, though the ,z detailsI of which, as they form vno1-part of' my n present invention, are not shown in the drawcylinder and bearing-box tok be readily lie- .V

. su pply-pipe for supply-ing thecoolin'g'uid to n,the diife'rent branch supply-pipes lea'rilingfto theinterior .of :the different printingcyl-in-` 1ers-A` .l i

loo

IIO

air-pressure in the,V upperipartof `the .heater trollfed byV valve38. 1 Pipe: 37 is a -main sup- 23ad 2 4' from being lost when the printi1g-l.r cylinders; and bearing are removed. g Ofpen' ing 20 in the bearing leads; at, its'other end',

l acylilndricalA chamber 21?:in1the'bearing;v t

ply-pipe'ffor supplyingheated liquid to `the toand around the multicolor-press, as ,shown iniiEigfQ, Vdelivering the heated liquid to plied to such surface.

entre branch supply-pipes 38, each of which is controlled by a Valve 39. Each of said branch pipes connects with a pipe 40, arranged to run centrally through water-roller 41, and is provided with orifices 42 to permit the escape of the heated liquid into the interior of the Water-roller. From the interior of this roller it passes out through openings 43 to the outer covering of cloth or felt surrounding the Water-roller, passing through this outer covering and onto the damping-rider and dampingrollers 44, and thence passing'to the printingsurface of the printing-cylinder. In this way the heated moistening liquid is continuously supplied to the printing-surface and is ap- If it is desired to employ gas or a vapor-laden air, I use devices of the following-described character: Air passes from the airpressure reservoir 5 through pipe 45, controlled by valve 46, into the bottom of heater 34, bubbles up through the heated water or dampening solution, and then passes out from the heater through pipe 47, controlled by Valve 48. Pipe 47 is themain supply-pipe for supplying a vapor-laden gas to the different printing-surfaces of the press. The vapor-laden air passes through main supply-pipe 47 to and around the multicolor-press, delivering the vapor-laden air to the different branch supply-pipes 49, each controlled by a Valve 50. Each pipe 49 runs along the face of the printing-surface on the face ofthe printing-roller parallel therewith and `adjacent thereto, and the vapor-laden air or gas is blown out through holes 5l in the pipe opposite to the printing-surface. By this means I force the heated Vapor-laden gas and blow it upon the cool printing-surface of the prin ting-cylinders, where it is immediately condensed by such contact, leaving the moisture of condensation upon said printing-surface.

What I claim as new, and desire to secure by Letters Patent, is-

l. The method of dampening the outer or printing surface ofA a planographic or other hollow printing-body, which consists in cooling the printing-surface by applying a cooling fluid to the interior of said body, and in applying a heating moistening fluid to the printing-Surface of said body. f

2. The method of dampening the outer or printing surface of a planographic or other hollow printing-body, which consists in cooling the printing-surface by continuously applying a cooling Huid to the interior of said body, and in continuously applying a heating moistening fluid to the printing-surface of said body.

3. The method of dampening a planographic or other cylindrical printing-surface, which consists in cooling the printing-surface by continuously applying a cooling fluid to the interior of the printing-cylinder, and in continuously applying a heated moistening fluid to the cylindrical printing-surface.

4. The method of dampening the outer or printing surface of a planographic or other hollow printing-body, which consists in cooling the printing-surface by applying a cooling fluid to the interior of said body, and in applying a heating dampening liquid to the printing-surface of said body.

` V5. The method of dampening a planographic or other cylindrical printing-surface which consists in cooling the printing-surface by continuously applying a cooling iuid to the interior of the printing-cylinder, and in continuously applying aheated damping liquid to the cylindrical printing-surface.

6. The method of dampening the outer or printing surface of a planographic or other hollow printing-body, which consists in cooling the printing-surface by applying a cooling liuid to the interior of said body, and in blowing upon the cooled printing-surface a heated vapor-laden gas.

7. The method of dampening a planographic or other cylindrical printing-surface which Consists in cooling the printing-surface by continuously applying a cooling liuid to the interior of the printing-cylinder, and in blowing upon the cooled printing-surface a heated Vapor-laden gas.

8. The method of dampening the outer or printing surfaces of planographic or other hollow printing-bodies in a multicolor-press, which consists in forcing a cooling fluid under pressure and a heated moistening iuid to the dierent mechanism in the press, applying the cooling iuid to the interiors of the hollow bodies and applying the heated moistening fluid to the different printing-surfaces of said bodies.

9. The method of dampening the outer or printing surfaces of planographic or other cylindrical printing-bodies, which consists in forcing a cooling iuid under pressure, and a heated moistenin g iiuid to the different printing-cylinders in the press, applying the cooling fluid to the interior of each printing-cylinder, and applying the heated moistening iluid to the different printing-surfaces.

l0. The lmethod of dampening the outer or printing surfaces of planographic or other hollow printing-bodies in a multicolor-press, which consists in forcing a cooling Huid under pressure and a heated moistening liquid to the dierent mechanisms in the press, applying the cooling fluid to the interiors of the hollow bodies and applying the heated moistening liquid to the different printing-surfaces of said bodies.

ll. The method of dampening the outer or printing surfaces of planographic or other hollow printing-bodies in a multicolor-press, which consists in forcing a cooling Huid under pressure, and a heated vapor-laden gas to the different printing mechanisms in the press, applying the cooling fluid to the interiors of the hollow bodies, and blowing upon the cooled printing-surfaces a heated Vapor-laden gas.

l2. In a planographic press the combination of a hollow printing-cylinder bearing a printingsurface, damping mechanism for IIO i Y essere damping the said surface, a cylindrical chainber and an` opening connecting therewith, arp `ranged in one of the bearings of said cylinder, and liui'd connections betweenthe chamber and opening and the interior hollow space ofthe printing-cylinder on the one side and between the said cylinder and opening and a suitable source of supply of cool fluid on the other side, whereby a cooling fluid can -be supplied to the vinterior of the cylinder to i cool the printing-surface, su'bstantiallyat set ing-cylinder, a'pipeconnecting said chamber with the interior of the printing-,cylinden'an opening lthrough the bearing-box connecting withsaid cylindrical chamber, a supply-pipe registering with the otherend of said-opening and connecting with a suitable source of supply of cooling uid, fluid-tight connections between the printing-cylinder and its bearing-box and elastic duid-tight connec-` tions between the supply-pipe andthe bear-` ing-box whereby cooling fluid can be con`` tinnously supplied to the interior of the printing-cylinder without interfering with its ro'' tation and whereby the printing-cylinder and bearing-box can readilybe removed from thev press or be replaced therein, substantially as described. f l p 14.-. In apla'nographic press the .combination of a hollow printing-cylinder bearing a printing-surface,'means for supplying a cool-` ing fluidvto the interior of the cylinder, whereby the printing-surface may be kept cool, damping mechanism-for damping said printing-surface, and means for supplying aheatedfluid to -said dampingl mechanism, substanf" tially as set forth.

an opening connecting therewith, arranged in one'of the bearings of said cylinder, and duid'- I tight connections between the chamber and` opening'and the interior hollow space of the printing-cylinder'on the one side 'and between y substantially as set forth. f 15. In a planographic press the combina-f v'tion of a hollow printing-cylinder bearing a printing-surface, a cylindrical chamber andl the saidcylinder andopeni-ng and asuitable source of supply of cooling fluid on the other side, whereby a cooling fluid can -be supplied to theinterior of the cylinder to cool the printing-surface, damping mechanisnlfor damping said printingfsurface and means for supplying a heated ilnid to said damping mechanism,

substantially as set forth. i

' 16. kIn a 'planographic press,"the combina# vtion of av series of yhollow printing-cylinders,

each bearing a printing-surface and each prop vided with damping mechanism, an air-pressure reservoir, a coolerconnected therewith, a main supply-pipe leading from' the'coo'ler, branchpipes each connecting with the main the interiork offene of the printing-cylinders on' the other side, whereby acooling nid' can 'be continuously supplied to thevinterior of supply-pipesonthe one side and leading to the printing-cylinder to cool the printing-sur I face substantially -as set forth'.

17. In a planographic press, thecombination of a series of hollow printing-cylinders,

\ each bearing a printing-surface and each provided' with damping mechanism, an air-pressure reservoir,`a cooler connected therewith,

a main supply-pipe leading` from the cooler,

branch lpipes each connecting with. the main supply-pipeon the oneside and leading to-the interior of one of the printing-cylinders on the other side, whereby a cooling iluidcan be contin uonsly supplied to theinterior'of theprinting-cylinder to cool the l 'printing-surface, a

`heater for heating a damping fluid, connec- A EDWARD H nrr.

Witnesses:

, EDWIN SEGER, y

, GEO. W. MILLS, J r. 

